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Explaining the underlying causes of different tabletability classifications of binary mixtures.
Pradeep Valekar1, Ira S Buckner1
1Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA 15282, USA.
Predicting tabletability of binary mixtures is possible by modeling component properties. Understanding compressibility and compactibility differences explains mixture behaviors, enabling accurate tablet formulation predictions.
Area of Science:
- Pharmaceutical Sciences
- Materials Science
- Chemical Engineering
Background:
- A tabletability classification system exists for binary mixtures.
- Previous studies applied the system but did not explain the causes of observed behaviors.
Purpose of the Study:
- Investigate the reasons behind different tabletability behaviors in binary mixtures.
- Identify component attributes influencing specific mixture behaviors.
- Develop predictive models for mixture tabletability.
Main Methods:
- Characterized binary mixtures of components with varied compressibility and compactibility.
- Compared individual component properties with observed mixture behaviors.
- Developed and validated models to predict tabletability based on component attributes.
Main Results:
- Accurate models of component compressibility and compactibility can predict mixture tabletability.
- Similar component tabletability profiles result in linear mixture behavior.
- Differences in compactibility/tabletability cause negative deviations; differences in compressibility/compactibility cause positive deviations.
Conclusions:
- Component properties (compressibility, compactibility) are key determinants of binary mixture tabletability.
- Predictive modeling based on component characteristics enhances formulation development.
- Understanding deviation causes aids in optimizing tablet manufacturing processes.
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